How can we make it more likely that resource revenues are used responsibly? Make sure governments and companies are transparent about those revenues through such campaigns as Publish What You Pay and the Extractive Industries Transparency Initiative (EITI). In this report written with Save the Children UK, Nathan London (formerly Emerging Market Economics--eme) compares revenue transparency in oil and gas companies, identifying leaders and laggards across six countries, and a framework for measuring transparency that sets a standard for company disclosure.